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use crate::{U128, U256, U512, U64};
use fixed_hash::*;
#[cfg(feature = "codec")]
use impl_codec::impl_fixed_hash_codec;
#[cfg(feature = "rlp")]
use impl_rlp::impl_fixed_hash_rlp;
#[cfg(feature = "serialize")]
use impl_serde::impl_fixed_hash_serde;
pub trait BigEndianHash {
type Uint;
fn from_uint(val: &Self::Uint) -> Self;
fn into_uint(&self) -> Self::Uint;
}
construct_fixed_hash! { pub struct H32(4); }
#[cfg(feature = "rlp")]
impl_fixed_hash_rlp!(H32, 4);
#[cfg(feature = "serialize")]
impl_fixed_hash_serde!(H32, 4);
#[cfg(feature = "codec")]
impl_fixed_hash_codec!(H32, 4);
construct_fixed_hash! {
#[cfg_attr(feature = "codec", derive(scale_info::TypeInfo))]
pub struct H64(8);
}
#[cfg(feature = "rlp")]
impl_fixed_hash_rlp!(H64, 8);
#[cfg(feature = "serialize")]
impl_fixed_hash_serde!(H64, 8);
#[cfg(feature = "codec")]
impl_fixed_hash_codec!(H64, 8);
pub use primitive_types::{H128, H160, H256};
construct_fixed_hash! {
#[cfg_attr(feature = "codec", derive(scale_info::TypeInfo))]
pub struct H264(33);
}
#[cfg(feature = "rlp")]
impl_fixed_hash_rlp!(H264, 33);
#[cfg(feature = "serialize")]
impl_fixed_hash_serde!(H264, 33);
#[cfg(feature = "codec")]
impl_fixed_hash_codec!(H264, 33);
pub use primitive_types::H512;
construct_fixed_hash! {
#[cfg_attr(feature = "codec", derive(scale_info::TypeInfo))]
pub struct H520(65);
}
#[cfg(feature = "rlp")]
impl_fixed_hash_rlp!(H520, 65);
#[cfg(feature = "serialize")]
impl_fixed_hash_serde!(H520, 65);
#[cfg(feature = "codec")]
impl_fixed_hash_codec!(H520, 65);
macro_rules! impl_uint_conversions {
($hash: ident, $uint: ident) => {
impl BigEndianHash for $hash {
type Uint = $uint;
fn from_uint(value: &$uint) -> Self {
let mut ret = $hash::zero();
value.to_big_endian(ret.as_bytes_mut());
ret
}
fn into_uint(&self) -> $uint {
$uint::from(self.as_ref() as &[u8])
}
}
};
}
impl_uint_conversions!(H64, U64);
impl_uint_conversions!(H128, U128);
impl_uint_conversions!(H256, U256);
impl_uint_conversions!(H512, U512);
#[cfg(test)]
mod tests {
use super::{H160, H256};
use serde_json as ser;
#[test]
fn test_serialize_h160() {
let tests = vec![
(H160::from_low_u64_be(0), "0x0000000000000000000000000000000000000000"),
(H160::from_low_u64_be(2), "0x0000000000000000000000000000000000000002"),
(H160::from_low_u64_be(15), "0x000000000000000000000000000000000000000f"),
(H160::from_low_u64_be(16), "0x0000000000000000000000000000000000000010"),
(H160::from_low_u64_be(1_000), "0x00000000000000000000000000000000000003e8"),
(H160::from_low_u64_be(100_000), "0x00000000000000000000000000000000000186a0"),
(H160::from_low_u64_be(u64::max_value()), "0x000000000000000000000000ffffffffffffffff"),
];
for (number, expected) in tests {
assert_eq!(format!("{:?}", expected), ser::to_string_pretty(&number).unwrap());
assert_eq!(number, ser::from_str(&format!("{:?}", expected)).unwrap());
}
}
#[test]
fn test_serialize_h256() {
let tests = vec![
(H256::from_low_u64_be(0), "0x0000000000000000000000000000000000000000000000000000000000000000"),
(H256::from_low_u64_be(2), "0x0000000000000000000000000000000000000000000000000000000000000002"),
(H256::from_low_u64_be(15), "0x000000000000000000000000000000000000000000000000000000000000000f"),
(H256::from_low_u64_be(16), "0x0000000000000000000000000000000000000000000000000000000000000010"),
(H256::from_low_u64_be(1_000), "0x00000000000000000000000000000000000000000000000000000000000003e8"),
(H256::from_low_u64_be(100_000), "0x00000000000000000000000000000000000000000000000000000000000186a0"),
(
H256::from_low_u64_be(u64::max_value()),
"0x000000000000000000000000000000000000000000000000ffffffffffffffff",
),
];
for (number, expected) in tests {
assert_eq!(format!("{:?}", expected), ser::to_string_pretty(&number).unwrap());
assert_eq!(number, ser::from_str(&format!("{:?}", expected)).unwrap());
}
}
#[test]
fn test_parse_0x() {
assert!("0x0000000000000000000000000000000000000000000000000000000000000000"
.parse::<H256>()
.is_ok())
}
#[test]
fn test_serialize_invalid() {
assert!(ser::from_str::<H256>("\"0x000000000000000000000000000000000000000000000000000000000000000\"")
.unwrap_err()
.is_data());
assert!(ser::from_str::<H256>("\"0x000000000000000000000000000000000000000000000000000000000000000g\"")
.unwrap_err()
.is_data());
assert!(ser::from_str::<H256>("\"0x00000000000000000000000000000000000000000000000000000000000000000\"")
.unwrap_err()
.is_data());
assert!(ser::from_str::<H256>("\"\"").unwrap_err().is_data());
assert!(ser::from_str::<H256>("\"0\"").unwrap_err().is_data());
assert!(ser::from_str::<H256>("\"10\"").unwrap_err().is_data());
}
}